Antares 3x fully multicoated, achromatic barlow lens for use in 1.25" telescope focusers and diagonals. Triples the power of any inserted eyepiece. Model # UB3STL.Conventional set screws are replaced with a unique and convenient 'twist lock" clamping mechanism to securely grip and center your eyepiece. Twist lock adapter can be unscrewed to expose a male T/T2 thread for imaging applications.Total length = 3.3"; Weight = 5.5oz. Made in Canada.All barlows change the focus point of your telescope. This amount depends on the exact combination of your telescope, barlow, eyepiece and other optical accessories. Hence, please note that you may not be able to reach focus with all eyepieces when using a barlow.
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